UBI: avoid unnecessary division operations
[linux-2.6.git] / drivers / mtd / ubi / vtbl.c
index 42a7815..d9af11a 100644 (file)
@@ -170,7 +170,7 @@ static int vtbl_check(const struct ubi_device *ubi,
                        goto bad;
                }
 
-               n = alignment % ubi->min_io_size;
+               n = alignment & (ubi->min_io_size - 1);
                if (alignment != 1 && n) {
                        err = 5;
                        goto bad;
@@ -684,14 +684,13 @@ static int check_scanning_info(const struct ubi_device *ubi,
                return -EINVAL;
        }
 
-       if (si->highest_vol_id >= ubi->vtbl_slots + UBI_INT_VOL_COUNT&&
+       if (si->highest_vol_id >= ubi->vtbl_slots + UBI_INT_VOL_COUNT &&
            si->highest_vol_id < UBI_INTERNAL_VOL_START) {
                ubi_err("too large volume ID %d found by scanning",
                        si->highest_vol_id);
                return -EINVAL;
        }
 
-
        for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) {
                cond_resched();